Bunn ULTRA-2 manual Transformer, Load

Page 59

SERVICE (cont.)

TRANSFORMER

FIG. 65 TRANSFORMER - ULTRA-1

Location:

The transformer is located inside dispenser onthe lower right side of the chassis.

Test Procedures:

1.Disconnect the dispenser from the power source.

2.Remove right side panel.

3.Connect the dispenser to the power source.

4.Connect a voltmeter from the WHI/BLU wire to the WHI/BLK wire on the transformer.

The indication must be: a) Aprox. 12.6 volts ac.

-LINE

-

 

R

 

FIG. 66 TRANSFORMER - ULTRA-2

Removal and Replacement:

1.Disconnect the dispenser from the power source.

2.Remove right side panel.

3.Disconnect the four wires from transformer.

4.Disconnect the wiring harness from the plug on the transformer.

5.Remove the two #8-32 nuts securing the trans- former to the chassis base. Remove transformer and discard.

6.Position new transformer on the chassis base, and secure with two #8-32 nuts.

7.Refer to Fig. 67 and reconnect the wires.

If voltage is present as described, the transformer is working properly.

If voltage is not present as described, refer to the Wiring Diagrams and check the main wiring harness.

5.Connect a voltmeter from the WHI wire to the BLK wire on the transformer.

The indication must be:

a)120 volts ac for 120 volt models.

b)230 volts ac for 230 volt models.

If voltage is present as described, replace trans- former.

WHI/BLU to

Main Harness

“LOAD”

WHI to Main Harness

Ultra-1 WHI/GRY to Main Harness Ultra-2 WHI/BLK to Main Harness

BLK to Main Harness

- -LINE

“LINE”

If voltage is not present as described, refer to the Wiring Diagrams and check the main wiring harness.

FIG. 67 TRANSFORMER TERMINALS

59

41084 102709

 

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Contents Phone 217 529-6601 FAX 217 ULTRA-1 ULTRA-2BUNN-O-MATIC Commercial Product Warranty User Notices ContentsIntroduction Temp & Torque Screen Operating Controls ULTRA-1 Operating Controls ULTRA-2 Switch upper left corner of the control padSurface Other and disconnect from Be taken when handling HopperFrom the rear of the drum Under spring tension. Spread One side of the handle first, thenAssemble the drip tray Drums and press the sealsFirmly into place as shown Auger noseMaterials required Sanitizing ProcedureNormal Operation Preventive MaintenanceDescription Required Regular MaintenanceKit Contents InstructionsRequired Regular Maintenance Board TroubleshootingNo Power Done Adjust Clean Troubleshooting Chills but Won’t freezeSet into DAY mode Set into ICE mode Is display showingTroubleshooting No cooling At all Brix ratio Too much Troubleshooting Freezes, but not Thick enoughAdjust thickness Screen higher Auger won’t turn Troubleshooting NoiseAuger jumping Check fan Drum alignment Check auger shaft bushingsTorque Sensor Shorted Torque Sensor Open TroubleshootingTorque Sensor Error Torque Sensor ErrorTemperature Sensor Open Troubleshooting Temperature Sensor ErrorTemperature Sensor Shorted Monthly reminder Troubleshooting Clean Filter MessagesFilter Needs Cleaning Freezing is DisabledComponent Access Panels ServiceMotor Coil Resistance SERVICEcontAuger Motors Auger Motor Capacitors Auger Motor CapacitorAuger Shaft Assembly Auger Shaft AssemblyRemove and clean condenser air filter, Fig Service Auger Shaft ASSEMBLYcontLocation Test ProceduresRemove the wires from the circuit breaker Circuit Breaker120V Compressors 230V Compressors Compressor Start Relay Terminals Service Compressor Assy Compressor Embraco ULTRA-2Model T-2168 Service Compressor Embraco ULTRA-2Model T-2155 Secure compressor to the dispenser chassis using four Capacitor Ratings Compressor SpecificationCSR Motor Wiring Diagram Compressor ModelCompressor Wiring Diagram Important SafeguardsDisconnect all electrical power to the Bunn ULTRA-2 HP Testing Compressor Windings/Insulation with a Meg- gerRun Capacitior External Thermal ProtectorPotential Start Relay Mounting Position Start CapacitorCompressor Thermal Compressor Appliances ULTRA-1Relay Terminals Service Service Compressor Danfoss ULTRA-1B Compressor Capacitor Terminals Service Relay or Contactor on Early Models TIC board Control BoardCooling Drum Shipping Support Cooling Drum AlignmentFAN ULTRA-2 Front of the condenser Test ProceduresUse cable ties to secure wires away from fan blades FAN FAN ULTRA-1Alternate Test HOT GAS Temperature SensorLamp Cord Assy Lamp Cord WiresLamp Cord Connector Lamp Cord ConnectorLamp HOLDER/SOCKET Assembly Lamp HOLDER/SOCKET AssemblyDisconnect the black and red leads from the LEDs Service LED LampsULTRA-2 ULTRA-1 Lamp RelayRibbon Cable Membrane Switch ULTRA-2Refer to and connect the ribbon cable to the Control Board Membrane Switch ULTRA-1WHI from Main Harness SolenoidsTemperature Sensor Temperature SensorDo not Turn on Augers Torque Sensor Circuit BoardLoad TransformerCoolant Schematic ULTRA-1 Coolant Schematic ULTRA-2 TH1 & MOV4 Controls Auger ULTRA-1 TriacsTH6 & MOV6 Controls Right Auger Liquid AUTO-FILL Board ULTRA-2 TriacsInput and Output Chart ULTRA-1 Schematic Wiring Diagram ULTRA-1 Input and Output Chart ULTRA-2 Schematic Wiring Diagram ULTRA-2 AF 41084
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ULTRA-2 specifications

The Bunn ULTRA-2 is an exceptional frozen beverage dispenser that caters to both commercial and home use, making it a popular choice in various establishments such as cafes, restaurants, and convenience stores. Renowned for its reliability and efficiency, the ULTRA-2 serves a wide range of frozen beverages, including slushes, smoothies, and frozen cocktails, providing an irresistible treat for customers.

One of the standout features of the Bunn ULTRA-2 is its high-capacity design. With a dual hopper system, this machine allows operators to serve two different flavors simultaneously. Each hopper can hold up to 3.2 gallons of product, allowing for continuous service without the need for frequent refills. This is particularly advantageous during peak hours when demand is high.

The ULTRA-2 is equipped with Bunn's advanced refrigeration technology, which ensures rapid freezing and consistent product quality. The machine uses a patented freezing mechanism that maintains optimal product texture and temperature, resulting in a smooth, uniform consistency that keeps customers coming back for more. Additionally, the ULTRA-2's adjustable temperature control allows operators to customize the consistency of the beverages to their liking.

User-friendliness is another hallmark of the Bunn ULTRA-2. The machine features intuitive controls that simplify operation, making it easy for staff to learn and use efficiently. A built-in safety feature prevents the machine from operating when the hoppers are too low, minimizing waste and ensuring product quality.

Durability and ease of maintenance are also prominent characteristics of the ULTRA-2. Constructed from high-quality stainless steel, the machine offers enhanced longevity and is resistant to rust and corrosion. The removable hoppers and door assemblies facilitate quick cleaning and maintenance, allowing businesses to keep the machine in top working condition with minimal effort.

In summary, the Bunn ULTRA-2 stands out in the crowded market of frozen beverage dispensers through its dual hopper functionality, advanced refrigeration technology, user-friendly design, and robust construction. Whether for a busy café or a family gathering, the ULTRA-2 provides a reliable solution for delivering delicious frozen beverages that satisfy a variety of tastes and preferences.
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